(19)
(11) EP 0 868 714 A2

(12)

(43) Date of publication:
07.10.1998 Bulletin 1998/41

(21) Application number: 97928736.0

(22) Date of filing: 27.11.1996
(51) International Patent Classification (IPC): 
G02F 1/ 167( . )
G09F 9/ 37( . )
G02B 26/ 02( . )
(86) International application number:
PCT/US1997/009297
(87) International publication number:
WO 1997/033267 (12.09.1997 Gazette 1997/39)
(84) Designated Contracting States:
DE FR GB

(30) Priority: 15.12.1995 US 19950572775
15.12.1995 US 19950572777
15.12.1995 US 19950572778
15.12.1995 US 19950572779
15.12.1995 US 19950572780
15.12.1995 US 19950572819
15.12.1995 US 19950572820
15.12.1995 US 19950573922

(71) Applicant: XEROX CORPORATION
Stamford, CT 06904-1600 (US)

(72) Inventors:
  • SHERIDON, Nicholas, K.
    Los Altos, CA 94022 (US)
  • MACKINLAY, Jock, D.
    Palo Alto, CA 94303 (US)
  • STONE, Maureen, C.
    Los Altos, CA 94022 (US)
  • ROBERTSON, George, G.
    Redmond, WA 98052 (US)

(74) Representative: Skone James, Robert Edmund 
GILL JENNINGS & EVERY Broadgate House 7 Eldon Street
London EC2M 7LH
London EC2M 7LH (GB)

   


(54) TWISTING BALL DISPLAYS INCORPORATING SEGMENTED POLYCHROMAL BALLS